| HEAD HEIGHT | 0.044 INCHES NOMINAL |
| HEAD MAJOR COUNTERSINK ANGLE | 76.0 DEGREES NOMINAL |
| HEAD MINOR COUNTERSINK ANGLE | 60.0 DEGREES NOMINAL |
| HEAD MINOR DIAMETER | 0.444 INCHES MINIMUM AND 0.448 INCHES MAXIMUM |
| HEAD STYLE | ELIPTICAL COUNTERSUNK |
| HEAD MAJOR DIAMETER | 0.518 INCHES MINIMUM AND 0.522 INCHES MAXIMUM |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763,COND A FED SPEC ALL MATERIAL RESPONSES OVERALL |
| MATERIAL | STEEL COMP 304 OR STEEL COMP 305 OVERALL |
| NOMINAL THREAD SIZE | 0.312 INCHES |
| NUT DIAMETER | 0.317 INCHES MINIMUM AND 0.320 INCHES MAXIMUM |
| NUT GRIP RANGE | +0.400 TO 0.460 INCHES |
| NUT STYLE | BLIND RIVET W/SMOOTH ROUND SHANK |
| NUT LENGTH | 0.814 INCHES MINIMUM AND 0.904 INCHES MAXIMUM |
| SHANK END TYPE | OPEN |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 24 |
| THREAD SERIES | UNF |